<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
  <meta charset="UTF-8">
  <title>模板邮箱</title>
</head>
<style type="text/css">
  body {
    font-family: Arial, sans-serif;
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f5f5f5;
  }

  h1 {
    text-align: center;
    color: #333;
  }

  form {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  }

  label, input {
    display: block;
    margin-bottom: 10px;
  }

  input {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
  }
  input[type="submit"] {
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 16px;
  }

  input[type="submit"]:hover {
    background-color: #0056b3;
  }
</style>
<body>
<form th:action="@{/emailTemplate}" method="post">
  <label>收件人：</label>
  <input type="text" name="emailname" placeholder="请输入邮箱">
  <label>主题：</label>
  <input type="text" name="title" placeholder="请输入标题">
  <label>用户名:</label>
  <input type="text" name="name" placeholder="请输入用户名">
  <input type="submit" value="发送" id="submit">
</form>
</body>
</html>